gost_20295-85

Tpynna B62M E XK T O C YIA P C T B E HH bI H C T A H IA PTTPYBbI CTAJIbHBIE CBAPHbIEJIA MATHCTPAJIbHBIX TA3OHETEIIPOBOOBTOCT20295-85TexHneckHe ycnoBHaB3aMeHSteel welded pipes for main gas-and-oil pipelines.SpecificationsT0CT20295-74OKΠ138101nocTaHoBeHHeM TocyapcTBeHHoro KoMHrera CCCP no cTaHapTaM OT 25 Hoaopa 1985 r.Ne 3693 ara BBeneHHaycTaHoBneHa01.01.87OrpamyeHne cpoka aeiicTBna cHsTo IIocTaHoBeHHeM ToceTarapra oT 14.08.91 Ne 1353HacTosi cTaHnapT pacnpocTpaHgeTca Ha cTaJbHble CBapHble npaMoIoBHble H cnHpabHOIlOBHbleTpy6bI HameTpoM 159-820 MM,npHMeHseMble coopyxeHna MarncTpaIbHbIx ra3oHedTenpoBonoB,HecTenpouyKTonpoBooB,TexHoJIorHeCKHX H npOMbICJIOBbIX TpyoonpoBooB.1.OCHOBHbIE IIAPAMETPbI M PA3MEPbI1.1.Tpy6bI H3rOTOBISHOT Tpex THIOB:1-npsMOIOBHble HaMeTpoM 159-426 MM,H3rOTOBeHHble KOHTaKTHoi CBapkoi ToKaMH BbIcokoiaCTOTbI;2-cmpabHOIOBHble IHameTpoM 159-820 MM,H3rOTOBeHHbIe 3JeKTpoyroBoi cBapkoi;3-npMooBHble InaMeTpoM 530-820 MM,H3rOTOBeHHble 3JeKTpoyroBoi cBapkoi.1.2.B 3aBHCHMOCTH OT MexaHHuecKHx CBOHCTB Tpy6bI H3rOTOBJISIOT KIaccoB npouHOCTH:K 34,K 38,K42,K50,K52,K55,K60.1.3.Pa3Mepbl Tpy6 OKHbI COOTBeTCTBOBaTb npHBeneHHbIM B Ta6J.1.1.4.Tpy6bI H3rOTOBJISIOT IIHHoi OT 10,6 o 11,6 M.Jo 1 HBapa 1989 r.nonyckaerca H3roToBJISTb o15 %(no Macce)Tpy6 THna 3 (ropsuenpaBneHHbIx)n o 3 (no Macce)Tpy6 THna 1 IHoi He MeHee5 M.IIs Tpy6 THNOB 1,2 H 9kcnaHpoBaHHbIX THna 3 nonyckaeTca H3rOTOBJISTb o 10 %(no Macce)Tpy6IHHOH He MeHee 8 M.